(27x)/(3)*(x^9)/(9x^7)

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Solution for (27x)/(3)*(x^9)/(9x^7) equation: 


D( x )

9*x^7 = 0

9*x^7 = 0

9*x^7 = 0

9*x^7 = 0 // : 9

x^7 = 0

x = 0

x in (-oo:0) U (0:+oo)

(((27*x)/3)*x^9)/(9*x^7) = 0

1*x^3 = 0 // : 1

x^3 = 0

x = 0

x in { 0} 

x belongs to the empty set

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